A system and method to provide secure communication across the untrusted public switched telephone network includes a set of rules in a security policy which are implemented by a virtual private switched telecommunications network. However, in a method in which light outputs from a plurality of light emitting elements are added, because common mode noise contained in the light outputs is added, deterioration in transmission quality caused by the common mode noise prominently arises. The front side of the \u201cS\u201d shape corresponds to the back side of the clip. To interface with these different actuators, the hosting system includes a remote management component that receives a user request from the front-end UI, identifies an actuator that can fulfill the user request, and sends the user request to the identified actuator.